The OBD code P0279 for Ford indicates an issue with Fuel Injector 7 Circuit Low.
This affects the fuel injector for cylinder 7. Symptoms include Engine Light ON, engine misfire, rough running engine, and decreased fuel efficiency.
Causes can be a dirty/faulty/plugged injector, open/shorted harness, or poor electrical connection.
It’s a moderate issue.
A possible fix is to inspect and repair any damaged components or wiring connections related to Fuel Injector 7.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the Ford p0279 OBD Code
The vehicle may experience rough idling, lack of power, and increased fuel consumption with code P0279.
- With Ford OBD code P0279, the Engine Light will be ON.
- Engine misfire can occur.
- The engine may run rough.
- You might notice lower fuel efficiency.
Causes of the Ford p0279 OBD Code
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Possible reasons for Ford fault code P0279 include injector circuit high voltage and injector malfunction.
- P0279 can be caused by a Dirty Fuel Injector 7.
- A Faulty Fuel Injector 7.
- A Plugged Fuel Injector 7.
- A Fuel injector 7 harness that is open or shorted.
- A Fuel injector 7 circuit with a poor electrical connection.
Fixing Ford Error Code p0279 Step By Step
Address the fuel injector circuit low voltage issue indicated by Ford code P0279.
- To fix Ford OBDII code P0279, first, review the possible causes related to cylinder 7 injector circuit low.
- Visually inspect the wiring harness and connectors specific to the cylinder 7 injector.
- Check for any damaged components and ensure the connector pins are not broken, bent, pushed out, or corroded.
- Test the continuity of the wiring from the PCM to the injector.
- Replace the injector if necessary.
- Clear the fault codes and perform a test drive to verify the repair.
Cost Of Fixing Ford p0279 Fault Code
The repair for Ford fault code P0279 involves diagnosing and fixing an injector circuit low.
The cost to diagnose and fix Ford OBD code P0279 is typically based on an estimated repair time of 1. 0 hour.
Labor rates range from $75 to $150 per hour, so the total cost could be around $75 to $150. Factors like shop rates and the complexity of the repair can influence the final cost.
Details of the Ford p0279 OBD Code
Ford code P0279 relates to a cylinder 7 contribution/balance fault.
OBD code P0279 for Ford vehicles indicates a contribution/balance fault for cylinder 7. This fault is triggered by the Powertrain Control Module (PCM) based on input from the crankshaft position sensor and camshaft position sensor.
The PCM monitors the performance of each cylinder by analyzing the crankshaft speed fluctuations during the combustion process.
If cylinder 7 is not contributing its fair share of power, the PCM will set code P0279. This code typically points to issues with fuel injectors, fuel delivery, compression, or ignition system problems specific to cylinder 7.
Mechanic’s Tech Notes
Detailed information on diagnosing and repairing fault code P0279 in Ford vehicles.
To diagnose and fix OBDII code P0279 on a Ford, start by checking the fuel injector circuit for cylinder 7. Use a voltmeter to test the power and ground connections to the fuel injector.
Inspect the wiring harness and connector for any damage, corrosion, or loose connections.
Check the connector pins for any signs of being bent or broken.
If everything looks good, use a scan tool to monitor the fuel injector operation and ensure it is receiving proper signals.
If necessary, consider reprogramming the engine control module.
FAQ
Common symptoms of OBD code P0279 in a Ford vehicle include Engine Light ON, Engine Misfire, Rough Running Engine, and Reduced Fuel Efficiency.
The typical cause of OBD code P0279 in a Ford vehicle is a fault related to Fuel Injector 7, such as being dirty, faulty, or plugged.
Diagnose and repair OBD code P0279 in a Ford: Symptoms include Engine Light ON, misfire, rough run, low MPG. Check Fuel Injector 7 for issues, inspect wiring harness, connectors for damage.
Wrap Up
If your Ford is displaying OBD code P0279 and experiencing rough idling, reduced engine performance, or misfires, it may be caused by a faulty injector in cylinder 7, wiring issues in the fuel injector circuit, or a problem with the fuel injector control module.
To address Ford OBD code P0279, inspect the wiring harness for any visible damage, test the fuel injector connector for proper connection, and consider replacing the fuel injector in cylinder 7 if necessary.
Additionally, check for any corrosion or loose connections in the fuel injector control module.
